[Suggestion] Multiple Affiliate Store

Hello everyone.,
I hope everyone is fine.

I have opened a Local store to sell products.
I planned to create another 3 domains and make complete store for my main store & they will be like affiliate store.
i will just take orders from those sites and ship the products via my main store..
is it good or bad?

what else should i think of?
or what else would be good for my store.
*** It's not an affiliate store.i sell my own products.
I also want to run facebook posting campaign with it.
thanks in advance